<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.DriverManager" %><%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2018/3/24 0024
  Time: 下午 10:11
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%
   if(session.getAttribute("islogin")==null){
       response.sendRedirect("login.jsp");
   }

%>
<style type="text/css">
    table {
        border: 1px solid #000;
        border-collapse: collapse;
    }
    td, th {
        border: 1px solid #000;
        padding: 10px;
    }
</style>
<p><a href="userAdd.jsp">添加用户</a></p>
<table>
    <thead>
    <tr>
        <th>编号</th>
        <th>用户名</th>
        <th>密码</th>
        <th>操作1</th>
        <th>操作2</th>
    </tr>
    </thead>

    <tbody>
    <%
        class User {
            int id;
            String name;
            String password;
            // alt + insert
            public User(int id, String name, String password) {
                this.id = id;
                this.name = name;
                this.password = password;
            }
        }
        List<User> list = new ArrayList<User>();
        // 3 + 1
        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;
        String sql = "select * from t_users";
        Class.forName("com.mysql.jdbc.Driver");

        connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu-javaweb-2018",
                "root",
                "123456"
        );
        statement = connection.createStatement();
        resultSet = statement.executeQuery(sql);
        while(resultSet.next()){
            int id = resultSet.getInt(1);
            String username = resultSet.getString(2);
            String password = resultSet.getString(3);
            User user = new User(id, username, password);
            list.add(user);
        }
        resultSet.close();
        statement.close();
        connection.close();

        for (User user : list) {

            out.write("<tr><td>" + user.id + "</td><td>" + user.name

                    + "</td><td>" + user.password + "</td>" +
                    "<td><a href='userUpdate.jsp?id="+user.id+"&username="+user.name+"" +
                    "&password="+user.password+"'>更新</a></td>"+
                    "<td><a href='userDelete.jsp?id="+user.id+"'>删除</a></td></tr>");
        }

    %>
    </tbody>
    <tfoot>
    </tfoot>

</table>
<%--jsp动作元素   jsp前缀--%>
<jsp:include page="footer.jsp">
    <jsp:param name="num" value="15"/>
</jsp:include>

<%--<%@ include file="footer.jsp"%>--%>
</body>
</html>
